SB2023112960 - Ubuntu update for u-boot-nezha

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Out-of-bounds write (CVE-ID: CVE-2022-2347)

The vulnerability allows an attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error in the U-Boot DFU implementation when processing download setup packets. An attacker with physical access to device can send a USB DFU download setup packet with a `wLength` greater than 4096 bytes, trigger a heap-based buffer overflow and execute arbitrary code on the system.

2) Buffer overflow (CVE-ID: CVE-2022-30552)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in the implementation of IP Packet Defragmentation. A remote attacker on the local network can trigger memory corruption and cause a denial of service condition on the target system.

3) Out-of-bounds write (CVE-ID: CVE-2022-30790)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in the implementation ofIP Packet Defragmentation. A remote attacker on the local netwotk can trigger out-of-bounds write and execute arbitrary code on the target system.

Remediation

Install update from vendor's website.

References

• https://ubuntu.com/security/notices/USN-6523-1